996405312 has 56 divisors (see below), whose sum is σ = 3012943936. Its totient is φ = 284686848.

The previous prime is 996405283. The next prime is 996405313. The reversal of 996405312 is 213504699.

It is a tau number, because it is divible by the number of its divisors (56).

It is not an unprimeable number, because it can be changed into a prime (996405313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 369343 + ... + 372030.

Almost surely, 2^996405312 is an apocalyptic number.

It is an amenable number.

996405312 is an abundant number, since it is smaller than the sum of its proper divisors (2016538624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

996405312 is a wasteful number, since it uses less digits than its factorization.

996405312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741395 (or 741385 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 996405312 is about 31565.8884240568. Note that the first 3 decimals coincide. The cubic root of 996405312 is about 998.8003320390.

The spelling of 996405312 in words is "nine hundred ninety-six million, four hundred five thousand, three hundred twelve".